Pasteboard-box-making machine



July 31, 1923.

A. A, ARNOLD PASTEBOARD BOX MAKING MACHINE s Sheets-She et 1 Filed June11, 1919 July 31, 1923.

A. A. ARNOLD PASTEBOARD BOX MAKING MACHINE Filed June 11 1919 6Sheets-Sheet frwerzi? J aWQM July 31, 1923.

1,463,567 A. A. ARNOLD PASTEBOARD BOX MAKING MACHINE 6 Sheets=Sheet 5Filed June 11, 1919 July 31, N23.

A. A. ARNOLD PASTEBOARD BOX MAKING MACHINE Filed June 11, 1919 eSheets-Sheet 4 July 31, 1923. 1,463,567

A. A. ARNOLD PASTEBOARD BOX MAKING MACHINE 101117655 4 hue/war.- WQM gJuly 31, 1923. 1,463,567

A. A. ARNOLD PASTEBOAHD BOX MAKING MACHINE Filed June 11, 1919 6Sheets-Sheet 6 Patented July 33, 13230 meats? PATENT @FFWE.

ALBERT A. ARNOLD, OF OAK PARK, ILLINOIS.

PASTEBOAED-BOX- MAKING MACHINE.

Application filed June 11, 1919. Serial No. 303,878.

To all whom it may concern:

Be it known that I, ALBERT A. ARNOLD, a citizen of the United States,residing at Oak Park, in the county of Cook and State of Illinois, haveinvented certain new and use ful Improvements in Pasteboard-Box-Mak--ing Machines, of which the following is a specification.

My invention relates to box-making ma- 30 chines, and more particularlyor especially to corner-staying mechanisms for pasteboard boxes and thelike, its prime object being the provision of a machine of this type ofsimple construction, which will operate with dispatch and efiectiveness,and which, by reason of adjustment, can be made to produce boxes ofradically different sizes and proportions.

In order that the manner of attainment of these objects and otherdesirable aims in the improved machines may be understood by thoseskilled in the art, I have illustrated a preferred and desirableembodiment of the invention in the accompanying drawings forming a partof this specification and throughout the various views of which likereference characters refer to the same parts.

In these drawings:

Figure 1 is an elevation of one corner portion of the machine;

Figure 2 is an elevation of the same part of the mechanism atright-angles to that of Figure 1;

Figure 3 is a plan view of the structure of Figures 1 and 2;

Figure 4 is a fragmentary horizontal section on line 4-4 of Figure 1;

Figure 5 is a horizontal section on line 55 of Figure 1;

Figure 6 is a fragmentary vertical section;

Figure 7 is a more complete vertical section taken on a different plane;

Figure8 is a plan view of the corner pressing portion of the appliance;

Figure 9 is a plan view one reduced scale of the entire machine; and.

Figures 10, 11, and 12 illustrate the manner of producing the boxstructure from a flat blank.

\ either b The entire machine, as is shown in a general way in Figure 9,comprises four, similar, adjustable mechanisms, one for stayin eachcorner of the box. A description 0 the construction and mode ofoperation of one of such corner-staying appliances, therefore, willsufiice for all.

Each of such corner sections or parts of the mechanism comprises a framestructure 20 of irregular shape having at the top an overhanging arm 21to which is secured by suitable screws, a depending, vertical,cornor-form 22 rectangular in horizontal crosssection and around whichthe corner portion of the fiat box-blank is adapted to be shaped to boxform.

The means for feeding the endless strip or ribbon of corner-bindingpaper or cloth, providing it with an adhesive coating, and severing itinto suitable sections of proper size for application to the boxcorners, comprises a slotted, adjustable bar 24 secured on a flathorizontal portion of the frame-structure by a screw 23, such bar at itsouter end transversely supporting and carrying a smaller bar 25 having abent upwardly-directed portion 26 with extensions 27 and 30, the former,in co-operation with another support 28, fastened to the bar 25, carryina blank guide 29, the portion 30 being fitte with an extension 31 ofsuch guide, by means of which the blanks are directed to proper positionbeneath the rectangular corner-form 22, these blanks being fed hand orautomatically by usual and wel -known means as may be convenient.

The supply-roll 35 of binding paper or cloth is demountably supported ona shaft 34 carried by an arm 32 mounted on the frame in any convenientmanner. The tape or ribbon unwinding from this supply-spool passesaround rollers 36, 38, and 39, to the feed-rollers 40 and 41, the roller38 dipping into a receptacle 37 containing any suitable adhesive, suchas paste or glue. In passing over the roller 38 the paper or clothribbon or tape is coated with the adhesive on its under side and as thestrip travels around the roller 39 it is inverted so at its upper facecarries the adhesive coating.

projecting from the walls of the recep tacle 37.

The lower knurled or roughened feed roller' itl is revoluble on astationary shaft 42 supported in a bracket d3 mounted on a lo projectiondd extended outwardly from the main frame, the part 45 of the bracketaftording a support for the inner end oi such lever 70 fulcrumed on astud-shaft 71 pro jecting from the bracket 45, and carries at its end atransverselyadjustable presser or shear plate 72, the main-frame oi themachine being equipped with an upstanding abutment or stop-arm 73adapted by engagement' with the overlying rear portion of the lever tolimit its descent, that is to say, to restrict the upward movement ofthe presser block or plate 72 at the other end of the lever. This leveris operated or rocked by means of a swivel-block 74 pivotally connectedwith its rear end, a rod 75 extendin down through an aperture of suchbloc and provided beneath it with an enlargement or head 76, the upperend of such rod having a portion 77 of larger size pivotally mounted ona shaft 78 extended laterally from a lever 80, the block being held inposition on the shaft by a retaining collar 79. In order to make theconnection between these two levers flexible or yielding, a coilspring75 is interposed between the swivelblock 74 and the upper block 77.

This lever 80, which carries a knife-blade shaft, This binding-stripfeeding'roller is actuated intermittently in a forward direc- 35 tiononly by reason or a toothed sector 47 whose hub d6 is loose on the shaft422, being in mesh with a vertically-slidable rack 48 guided in itsreciprocations by an element 49, the rack being operated by means heresoinatter described.

The roller l has a ratchet-Wheel 52 rigid therewith intermittentlyturned by a pawl 50 pivoted to the gear-sector at 51, and the upperroughened feed-roller 4 1 is rotated by means of a gear 53 rigid withthe roller 40, being in mesh with a smaller gear 54 integral with orfixed to the upper roller ll. lit will be understood, therefore, thatthe reciprocation of rack 48 actuates the gear-secto tor and pawl andthe latter in turn operates the ratchet-wheel, which turns the lowerfeed-roller, and the gearing, by reason of which the upper teed-rolleris actuated.

Such upper roller and its gear are suptt ported in a frame 55, 56, 57,hinged on a fixed stud-shaft 58 projecting from a bracket 59 mounted onthe machine-frame, the upper roller frame being normally pulled down toits work by a coil contractile spring 60 shown in Figure 2.

The rack 48 is caused to reciprocate vertically by reason of a linkconnection 61 between its lower end and a member 62 having a bifurcatedportion straddling the shaft 63, the element 62 carrying a roller 64traveling in the cam-groove 65 cut in the face of a large bevel gear 66mounted on shaft 63. The rotation of this gear and its cam-groovevertically reciprocates the memher 62 and this in turn, by reason of thelink connection, operates the rack 48, bringing about the desired,intermittent, forward feeding of the corner binder ribbon or tape. Suchlarge bevel-gear 66 is revolved from a drive-shaft 68 by means of apinion 67 thereon and in mesh with the gear, the shaft being supportedrotatably in suitable bearings 69 (see Figure 5).

The means for severing the advance portion of such adhesive-coated stripand pressing it against and causing it to adhere to the under side ofone of the wings or flaps of the flat, pasteboard box-blank adapted whenbent up to form one of the side-walls f of the box will now bedescribed. A presser- 81 adapted to co-operate with the edge of thepresser plate or. block 72 in severing the binding strip into lengths,is fulcrumed or hinged by means of its end hub 81 (Figure 3) on astationary shaft 81 mounted in the bracket 45, the hub of this lever andthat 83 of an associated lever 82 being maintained in position on theshaft by a retaining collar 84:. Lever about midway of its length has alaterally-extended ear or lu 85 through an aperture of which a rod 86,tlxed to the lever 82, projects, a stop-nut 87 being threaded on the endof such rod above the lug 85, a spring 88 being interposed between thelever 82 and the abutment 85.

Lever 82 at its end is provided with. a resser-bar 89 adapted tooo-operate with the lower resser-bar 72 to apply and press theadhesive-coated binding-strip against the under face of a lateral wingor flap of the flat pasteboard blank which is to compose the box-body,and this squeezing action will,

of course, be cushioned by reason of the use of springs 88 and 75 Lever80, and consequently the associated or connected levers 82 and 70, isactuated or rocked on its fulcrum by a link composed of the two parts 90and 91 connected together by the coupling 92, this link being pivoted tothe lever 80 and to an arm 93 fulcrumed on a shaft 94: supported inbrackets of the main-frame and equipped with a roller 95 positioned inthe cam-groove 96 cut in the side of the bevel-gear 66. It will bereadily understood that when the wall of the cam-groove rocks thelever93 downwardly, levers 80 and 82 will swing down, and the lever 70 willrock upwardly, the blade 81 severing the advance portion of thebindingstrip from the main supply and the two 1 board blank.

. cal

master parts 89 and 72 squeezin the severed corner binder onto the undersi e of the flat paste- Turning now to the mechanism for folding theside wings or fla of the pasteboard blank upwardly, it w'l be observedthat the :(pphance includes an upright cylindri- 100 supported by themain-frame, and slidable on this is a block 101 of general right-angleing at 102 (1* igure 2) a pivotal connectlon with a link 103 hinged at104 to an operating arm 105 fulcrumed on a suitably-supported shaft 107by means of its hub 106, the shaft being mounted in extensions 108, 108of the main-frame. Arm 105 is rocked by means of its roller 109traveling in the cam-groove 111 of a cam 110 mounted on and revolved byshaft 63.

The reciprocatory block or support 101 carries a bent folding bar 112having a top flared end 113 and equipped with a box stripping shoulder114, the bar being yieldingly supported on a stud 115 screwed into theblock 101 and extended through an aperture of the bar and provided witha nut 116 between which and the adjacent face of the bar a cushioningcoil-spring 117 is accommodated encircling the stud. To guide the lowerend of the bar it is provided with a pin 118 slidable in an aperture 119in the part 101.

In similar manner another bent blankfolding bar 120 is carried by thesupport 101 and located at right-angles to the bent bar 112 and it, asis the case with the other bar, has a beveled, flared, upper end 121 anda box-stripping or discharging shoulder 122, thebarbeing yieldinglypressed toward the part 101 by reason of a spring 125 encircling ascrew-threaded stud 123 mounted on the block 101 and provided with a nut124 between which and the bar 120 a coil-spring 125 is positioned. Bar120 is also guided in its yielding movement by a. pin 126 projectingtherefrom and slidingly received in an aperture 127 of correspondingcaliber in the block 101.

These two blank-folders 112 and 120 during their upward travel areadapted to bend or fold upwardly the side flaps or side wings of thecut-out corner pasteboa'rd-blanks around the two adjacent sides vof thedepending form block 22.

To fold or bend the unattached part of the adhesive-coated corner-stayaround the corner of the box and afiix it in place, the

- following instrumentalities are provided.

A sliding block 130 with two vertical surfaces 131 and 132 atright-angles to one another has a dove-tail base 133 slidinglyaccommodated in the similarly-shaped undercut bearing 134 in themain-frame. To reciprocate this recessed member diagonally toward andfrom the corner of the rectanshape 1n cross-section hav-' conical end ofwhich is adapted to take into any one of a curved series of depressions145 in the adjacent wall of the main-frame.

By changing the position of arm 143 the ad ustment of therelatively-stationary eccentric shaft may be varied So as to modify therange of travel. of the sliding-block 130, thus permlttingit to act uponboxes ofdifferent thicknesses bent around the form 22. The element 138of the toggle connection is actuated or rocked by means of an upward proect1on 146 of the cam-actuated sliding member 62', such extension havinga pivotal connection 147 with the toggle element.

In order to fold the paper or cloth cornerstay around the corner of thebox, the reciprocatory block 130 is provided with a pluner 150accommodated in a recess 151 at t e ]L1I10t101'l or intersection of thetwo rightangle surfaces 131 and 132, the plunger havmg a stem 152extended through an aperture in the wall of the block and provided witha limiting or stop-nut 153. In order to normally press the plungeroutwardly, that is, toward the form, the cavity or recess 151 housesacoil expansion spring 154 of substantial capacity which at one endbears against the end of the recess and at its other end against theplunger. At its outer end such plunger has two wings or folding plates155, 156, hinged thereon at its center at 157 and pulled rearwardly bycoil contractile springs 158, 158, located in cavities 159, 159, in theblock. These springs are of less strength than spring 154 and act tohold the plates at all times in contact with the shoulders 160, 160, ofthe block 130 during the movements of the supporting plunger 150. Itwill be clear that as the member 130 approaches the form, the two plateswhile originally in the same plane, turn into a right-angle relationduring the inward travel of the plunger brought about by engagement withthe corner of the form, and in so doing, these plates fold the paper orcloth tab or binder around the corner of the box on the form and pressit firmly in place.

As has been explained above, four of these corner appliances are groupedor associated together in rectangular relation as indicated in Figure 9,to simultaneously act on all four corners of the box under construction.In this combined machine the three driving shafts 68, 68, 68, areextensib le andoperatively connected together at the corners of theappliance by intermeshing bevel gears 161, 161, one of such shafts suchas the lower one in Figure 9, being extended and connected to any sourceof power, such as an electric-motor, not shown. These four cornermechanisms are connected together in an adjustable manner whereby theymay be shifted to work on blanks of different sizes and dimensions andaccordingly, it is necessary to connect such four mechanisms together byscrew-threaded shafts or otherwise to obtain the proper and preferablysimultaneous adjustment of all of the parts, and this is done insubstantial accordance with the adjusting means shown and described inUnited States Patent N'o. 1,257,- 988, Arthur J. Evcrs, asteboard boxmak ing machines, issued larch 5, 1918. In view of the disclosure inthis earlier patent, I have not deemed it necessary to make mention ofthis phase of the mechanism in detail nor to illustrate it, but willmerely state that the connecting shafts are made extensible so that thefour parts of the machine may be contracted and expanded in unison withease and dispatch.

Assuming that a square box is to be-produced by this machine, a blank170 of the cut-out corner type is employed of the style or formillustrated in Figure 10, such blank having four wings or-flaps 171adapted to be bent up along the scored folding lines 172 to constitutethe four side-walls of the box. This blank is brought under the fourcorner forms 22 (see Figure 9) the edges of which are in register orcoincident with the folding or bending lines 172. Then the four stripsof corner-staying or b-indin paper or cloth are advanced beneath theblank by their roughened feed-rollers 40 and 41 with theiradhesive-coated faces uppermost and the front ends of such strips arebrought beneath the flaps or wings 171, as shown in Figure 11, andapplied thereto by the co-operating presser plates or bars 89 and 72which yieldingly press together the super osed pasteboard wings andpaper strips. oon afterward these sections of the binding tape 173 aresevered or cut from their supply strips on the lines 174, leavingprojecting tabs 175, as illustrated. Then the folders 112 and 120ascend, bending the wings or flaps up at right-angles to the body of theblank and against the sides of the four forms, and soon afterward themembers 130 slideinwardly and the bending plates 155 and 156 fold theprotruding tabs 175 around the corners of the box and cause them toadhere to the other adjacent bent up wings. thus completing thecornerstaying operation. The element 130 begins to retreat, the folders112 and 120 descend, stripping or deliverin the box from the form byreason of their shoulders 114 and 122 which during the ascent havepassed upessee? mechanical changes or modifications may be made in thedetails of the construction presented without departure from thesubstance and-essence of the invention and with-- out the sacrifice ofany of its substantial benefits and advantages.

I claim:

1. In a box-making machine of the character described, the combinationof a plurality of corner-forms stationary during the opera-' tion of themachine, means to simultaneously apply corner-staying strips to wings ofa flat pasteboard box blank while the latter is in register with saidforms leaving projecting tabs of such strips, means to simultaneouslybend said wings about said forms to constitute the side-walls of thebox, and means to simultaneously bend said tabs about the corners of thebox and aifix them in place, substantially as described.

2. In a box-making machine of the character described, the combinationof a mainframe, a plurality of depending cornerforms mounted on saidmain-frame and stationary during the operation of the machine, means tosimultaneously feed the advance portions of adhesive-coatedcorner-staying strips beneath wings of a fiat pasteboard box blankbeneath said forms, means to affix such advance portions to said wings,means to sever the afiixed sections of the strips from the main-body ofthe strips leaving projecting tabs, means to simultaneousl bend saidblank wings upwardly about said stationary forms, and means tosimultaneously bend said tabs around the corners of the box and aflixthem in place, substantially as described.

3. In a machine of the character described, the combination of amain-frame, a lurality of depending corner-forms mounted on saidmain-frame, means to simultaneously feed the advance portions ofadhesive-coated corner-staying strips beneath wings of a flat pasteboardbox blank beneath said forms, means to aflix such advance portions tosaid wings, means to sever the aflixed sections of the strips from themain-bodies of the strips leaving projecting tabs, means tosimultaneously bend said blank wings upwardly about said forms, andmeans slidable diagonally of the box to simultaneously bend said tabsaround the corners of the box and affix them in place, substantially, asdescribed.

4. In an ap liance of the character described the com ination of acorner-formstationary during the operation of the machine, means toapply an adhesive-coated cornerstay to a wing of a flat pasteboard blankbeneath the form leaving a projecting tab, means to bend said wing andan adjacent wing of the blank adapted to constitute side chine, means tofeed a strip of adhesivecoated corner-stay ,material, means to aflix theadvance part of said strip to a wing of a flat pasteboard box blankbeneath said form, means to sever said advance part of the stri from themain-Suppl strip leaving an unadhered tab projecting rom the wing, meansto bend said wing and an adjacent wing against adjoinin surfaces of saidform, and means to hen the unattached tab of the stay around the cornerof the box and afiix it in place, substantially as described.

6. In an appliance of the character described, thev combination of acorner-form stationary during the operation of the machine, means tofeed a strip of adhesive-coated corner-stay material, means to affix theadvance part of said strip to a wing of a flat pasteboard box blank inregister with said form, means to sever said advance part of the stripfrom the main supply strip leaving an unadhered tab projecting from thewing, means to bend sald wing and an adjacent wing against adjoiningsurfaces of the form, and means reciprocating diagonally of'saidcorner-form to bend the unattached tab of the stay around the corner ofthe box and aflix it in place, substantially as described.

7. In an appliance of the character described, the combination of acorner-form, means to feed a strip of corner-stay mate rial, means toafiix the advance part of said strip to a wing of a flat pasteboard boxblank, means to sever said advance part of the strip from the mainsupply strip leaving an unadhered tab projecting from the wing,

means to bend sald wing and an adjacent wing against adjoining surfacesof said form, a reciprocating member, and a pair of hinged folderscarried by said member and adapted to bend the unattached tab of thestay around the corner of the box and afiix it in place, substantiallyas described.

8. In an appliance of the character described, the combination of acorner-form, means to feed a strip of adhesive-coated corner-staymaterial, means to afiix the advance part of said strip to a wing of aflat pasteboard box blank, means to sever said advance part of the stripfrom the main supply strip leaving an unadhered tab projectlng from thewing, means to bend said .wing and an adjacent Wing against adjoiningsurfaces of said form, a member reciprocating diagonally of saidcorner-form, and a pairof folders hinged co-axially on said member andadapted to bend the unattached tab of the stay around the corner ofthebox and afiix it in place, substantially as described.

9. In an appliance of the character described, the-combination of acorner-form, means to feed a strip of corner-stay material, means toaflix the advance part of said strip to a wing of a flat pasteboard boxblank, means to sever said advance part of ber, a spring-pressed plungermounted in said member, and a pair of spring-pulled folders hingedco-axially on said plunger and normally held a ainst parts of saidreciprocating member y their springs, said folders being adapted duringthe advance of said member toward the corner of the form to bend theunattached tab of the stay around the corner of the box and aflix it inplace, substantially as described.

10. In an appliance of the character described, the combination of amain-frame, 9. depending corner-form mounted fixedly on said main-frame,means to feeds. strip of adhesive-coated corner-stay material be neaththe wing of a flat pasteboard box blank below said corner form, means toafiix the advance part of said strip to the underside of said wing,means to sever said advance part of the strip from the main supply stripleaving an unadhered tab projecting from the wing, means to bend saidwing and an adjacent wing upwardly against adjoining surfaces of saidstationary form, and means to bend the unattached tab of the stay aroundthe corner of the box and aflix it in place, substantially as described.

11. In a machine of the character described, the combination of amain-frame, a plurality of depending corner-forms mounted on saidmain-frame, means to simulta-. neously feed the advance portions ofadhesive-coated corner-staying strips beneath wings of a fiat pasteboardbox blank beneath said forms, means to simultaneously afiix such advanceportions to said wings, means to sever the affixed sections of thestrips from the main bodies of the strips leaving projecting tabs, meansto simultaneously bend said blank wings upwardly about said forms, aplurality of members reciprocatory

